The product is a rear axle locker dash switch designed for a 2015-2020 Ford F150 with rear-wheel drive and an automatic transmission. The manufacturer part number is FL3T72155EDW. This switch allows the driver to engage or disengage the rear axle locker, providing enhanced traction and stability in certain driving conditions. Made by Ford, this genuine part is specifically designed for the specified vehicle model and drive type, ensuring a perfect fit and optimal performance.